trace_stack: Fix seqfile memory leak
Every time we cat stack_trace, we leak memory allocated by seq_open(). Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> LKML-Reference: <4A67D8E8.3020500@cn.fujitsu.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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@ -301,17 +301,14 @@ static const struct seq_operations stack_trace_seq_ops = {
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static int stack_trace_open(struct inode *inode, struct file *file)
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static int stack_trace_open(struct inode *inode, struct file *file)
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{
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{
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int ret;
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return seq_open(file, &stack_trace_seq_ops);
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ret = seq_open(file, &stack_trace_seq_ops);
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return ret;
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}
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}
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static const struct file_operations stack_trace_fops = {
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static const struct file_operations stack_trace_fops = {
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.open = stack_trace_open,
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.open = stack_trace_open,
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.read = seq_read,
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.read = seq_read,
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.llseek = seq_lseek,
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.llseek = seq_lseek,
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.release = seq_release,
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};
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};
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int
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int
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